Where the ingredients come from

Sourcing in supplements is where compliance begins, because everything you can claim rests on knowing what you bought.

Four categories of input

Bulk actives and proteins, which dominate the formula and the cost.

Micro ingredients: vitamins, minerals, premixes, present in milligrams.

Functional excipients: flow agents, anticaking agents, carriers.

Sensory: flavors, sweeteners, colors, which are several percent and alter the blend's physics.

What must come with them

A lot-specific certificate of analysis with numbers and methods. A written specification. Particle size, because it drives segregation. Safety data. And enough information to establish identity, which is your obligation rather than the supplier's.

A supplier who cannot supply those is a supplier whose material you cannot document, which in this category means material you cannot use.

Botanicals need more scrutiny

Botanical raw materials are the highest-risk category. Species substitution, adulteration with cheaper plant material, and undeclared additions are documented problems rather than theoretical ones.

They also carry heavy metals from soil, which is a Proposition 65 question as well as a safety one.

For botanicals, identity testing at a laboratory is not a formality. It is the point at which you find out whether you have what you paid for.

Buying quantities that work

Raw materials have shelf lives. Actives degrade, proteins with fat go rancid, and hygroscopic materials take up moisture in storage.

Buy actives and proteins in quantities you will use rather than at the best break. Bulk excipients tolerate quantity.

And remember that a new supplier for an existing ingredient is a change requiring qualification and probably a retest, not a purchasing decision.

References